GSM network is widely available network in the form of wireless network which is capable for sending and receiving SMS, MMS, voice call multimedia services, Internet with the help of smart phone. In the present paper a smart phone is developed for security and control purpose for industries as well as home. This system is based on microcontroller, various sensors, GSM modem, GSM SIM. This smart phone is used as normal phone as well as auto security and control device, which is controlled by device holder with the help of mobile phone.